<template>
  <a-layout>
    <a-layout-content
        :style="{ background: '#fff', padding: '24px', margin: 0, minHeight: '280px' }"
    >
      <a-row :gutter="24">
        <a-col :span="8">
          <p>
            <a-button type="primary" @click="add(record)">
              新增
            </a-button>
          </p>
          <a-table
              v-if="level1.length > 0"
              :columns="columns"
              :row-key="record => record.id"
              :data-source="level1"
              :pagination="false"
              :loading="loading"
              size="small"
              :default-expand-all-rows="true"
          >
            <template #name="{ text: record }">
              <!--              <img v-if="cover" :src="cover" alt="avatar" style="width: 20%;height: 20%"/>-->
              {{ record.sort }}{{ text }}
            </template>
            <template v-slot:action="{ text, record }">
              <a-space size="small">
                <a-button type="primary" @click="edit(record)" size="small">
                  编辑
                </a-button>
                <a-popconfirm
                    title="删除后不可恢复，确定删除?"
                    ok-text="是"
                    cancel-text="否"
                    @confirm="handleDelete(record.id)"
                >
                  <a-button type="danger" size="small">
                    删除
                  </a-button>
                </a-popconfirm>
              </a-space>
            </template>
          </a-table>
        </a-col>

        <a-col :span="16">

          <p>
            <a-form layout="inline" :model="param">
              <a-form-item>
                <a-button type="primary" @click="handleSave()">
                  保存
                </a-button>
              </a-form-item>
            </a-form>
          </p>

          <a-form :model="doc" layout="vertical">
            <a-form-item label="名称">
              <a-input v-model:value="doc.name" placeholder="名称"/>
            </a-form-item>

            <a-form-item>
              <a-tree-select
                  v-model:value="doc.parent"
                  style="width: 100%"
                  :dropdown-style="{maxHeight:'400px',overflow:'auto'}"
                  :tree-data="treeSelectData"
                  placeholder="请选择父文档"
                  tree-default-expand-all
                  :field-names="{children:'children',label:'name',value:'id'}"
              >
              </a-tree-select>
            </a-form-item>

            <a-form-item>
<!--              <a-input v-model:value="doc.parent"/>-->
              <a-select
                  v-model:value="doc.parent"
                  ref="select"
              >
                <a-select-option value="0">
                  无
                </a-select-option>
                <a-select-option v-for="c in level1" :key="c.id" :value="c.id" :disabled="doc.id === c.id">
                  {{ c.name }}
                </a-select-option>
              </a-select>
            </a-form-item>
            <a-form-item>
              <a-input v-model:value="doc.sort" placeholder="顺序"/>
            </a-form-item>

            <a-form-item>
              <a-button type="primary" @click="handlePreviewContent()">
                <EyeOutLined/>
                内容预览
              </a-button>
            </a-form-item>

            <a-form-item label="内容">
              <div id="content"></div>
            </a-form-item>
          </a-form>
        </a-col>
      </a-row>


      <a-drawer width="900" placement="right" :closable="false" :visible="drawerVisible" @close="onDrawerClose">
        <div class="wangeditor" :innerHTML="previewHtml"></div>
      </a-drawer>


    </a-layout-content>
  </a-layout>
  <!--  <a-modal-->
  <!--      title="文档表单"-->
  <!--      v-model:visible="modalVisible"-->
  <!--      :confirm-loading="modalLoading"-->
  <!--      @ok="handleModalOk"-->
  <!--  >-->

  <!--  </a-modal>-->
</template>


<script lang="ts">
import {createVNode, defineComponent, onMounted, ref} from 'vue';
import axios from 'axios';
import {Tool} from '@/utils/tool'
import {message, Modal} from "ant-design-vue";
import {useRoute} from "vue-router";
import ExclamationCircleOutlined from "@ant-design/icons-vue/ExclamationCircleOutlined";
import E from 'wangeditor';

export default defineComponent({
  name: 'AdminDoc',
  // components: {
  //
  // },
  setup() {
    const route = useRoute();
    const docs = ref();
    const pagination = ref({
      current: 1,
      pageSize: 4,
      total: 0
    });
    const loading = ref(false);

    const treeSelectData = ref();
    treeSelectData.value = [];

    const columns = [
      {
        title: '名称',
        dataIndex: 'name'
      },
      // {
      //   title: '父文档',
      //   dataIndex: 'parent'
      // },
      // {
      //   title: '顺序',
      //   dataIndex: 'sort'
      // },
      {
        title: 'Action',
        key: 'action',
        slots: {customRender: 'action'}
      }
    ];

    const level1 = ref();
    level1.value = [];

    /*
    * 数据查询
    * */
    const handleQuery = () => {
      loading.value = true;
      level1.value = [];
      axios.get("/doc/allList/" + route.query.ebookId).then((resp) => {
        loading.value = false;
        const data = resp.data;
        docs.value = data.data;

        if (data.code === 10001) {
          console.log(data.data);
          console.log("原始数组：", data.data);

          level1.value = [];
          level1.value = Tool.array2Tree(data.data, 0);
          console.log("树形结构：", level1);

          treeSelectData.value = Tool.copy(level1.value) || [];
          treeSelectData.value.unshift({id: 0, name: '无'});

        } else {
          message.error(data.msg);
        }
      });
    };


    /**
     * 内容查询
     **/
    const handleQueryContent = () => {
      axios.get("/doc/findContentById/" + doc.value.id).then((response) => {
        const data = response.data;
        if (data.code === 10001) {
          editor.txt.html(data.data)
        } else {
          message.error(data.msg);
        }
      });
    };

    // -------- 表单 ---------

    const doc = ref();
    doc.value = {
      ebook_id: route.query.ebookId
    };
    const modalVisible = ref(false);
    const modalLoading = ref(false);

    const editor = new E('#content');
    editor.config.zIndex = 0;


    const handleSave = () => {
      modalLoading.value = true;
      doc.value.content = editor.txt.html();
      axios.post('/doc/save', doc.value).then((resp) => {
        modalLoading.value = false;
        const data = resp.data;
        if (data.code === 10001) {
          // modalVisible.value = false;
          // modalLoading.value = false;
          message.success("保存成功！");
          //重新加载列表
          handleQuery()
        }
      })
    };

    /**
     * 查找整根树枝
     */
    const ids: Array<string> = [];
    const deleteNames: Array<string> = [];
    const getDeleteIds = (treeSelectData: any, id: any) => {
      // console.log(treeSelectData, id);
      // 遍历数组，即遍历某一层节点
      for (let i = 0; i < treeSelectData.length; i++) {
        const node = treeSelectData[i];
        if (node.id === id) {
          // 如果当前节点就是目标节点
          console.log("delete", node);
          // 将目标ID放入结果集ids
          // node.disabled = true;
          ids.push(id);
          deleteNames.push(node.name);

          // 遍历所有子节点
          const children = node.children;
          if (Tool.isNotEmpty(children)) {
            for (let j = 0; j < children.length; j++) {
              getDeleteIds(children, children[j].id)
            }
          }
        } else {
          // 如果当前节点不是目标节点，则到其子节点再找找看。
          const children = node.children;
          if (Tool.isNotEmpty(children)) {
            getDeleteIds(children, id);
          }
        }
      }
    };


    const handleDelete = (id: number) => {
      // 清空数组，否则多次删除时，数组会一直增加
      ids.length = 0;
      deleteNames.length = 0;
      getDeleteIds(level1.value, id);
      Modal.confirm({
        title: '重要提醒',
        icon: createVNode(ExclamationCircleOutlined),
        content: '将删除：【' + deleteNames.join("，") + "】删除后不可恢复，确认删除？",
        onOk() {
          // console.log(ids)
          axios.delete('/doc/remove?ids=' + ids.join(",")).then((response) => {
            const data = response.data; // data = commonResp
            if (data.code === 10001) {
              // 重新加载列表
              handleQuery();
            } else {
              message.error(data.msg);
            }
          });
        },
      });
    }


    /**
     * 将某节点及其子孙节点全部置为disabled
     */
    const setDisable = (treeSelectData: any, id: any) => {
      // console.log(treeSelectData, id);
      // 遍历数组，即遍历某一层节点
      for (let i = 0; i < treeSelectData.length; i++) {
        const node = treeSelectData[i];
        if (node.id === id) {
          // 如果当前节点就是目标节点
          console.log("disabled", node);
          // 将目标节点设置为disabled
          node.disabled = true;

          // 遍历所有子节点，将所有子节点全部都加上disabled
          const children = node.children;
          if (Tool.isNotEmpty(children)) {
            for (let j = 0; j < children.length; j++) {
              setDisable(children, children[j].id)
            }
          }
        } else {
          // 如果当前节点不是目标节点，则到其子节点再找找看。
          const children = node.children;
          if (Tool.isNotEmpty(children)) {
            setDisable(children, id);
          }
        }
      }
    };


    //编辑
    const edit = (record: any) => {
      editor.txt.html("");
      // doc.value = record;
      modalVisible.value = true;
      doc.value = Tool.copy(record);
      handleQueryContent();

      treeSelectData.value = Tool.copy(level1.value);
      setDisable(treeSelectData.value, record.id);

      treeSelectData.value.unshift({id: 0, name: '无'});

      // setTimeout(() => {
      //   editor.create();
      // }, 100)

    }

    //新增
    const add = (record: any) => {
      editor.txt.html("");
      // doc.value = {};
      modalVisible.value = true;

      doc.value = {
        ebookId: route.query.ebookId
      };


      treeSelectData.value = Tool.copy(level1.value) || [];

      treeSelectData.value.unshift({id: 0, name: '无'});

      // setTimeout(() => {
      //   editor.create();
      // }, 100)

    }


    const drawerVisible = ref(false);
    const previewHtml = ref();
    const handlePreviewContent = () => {
      const html = editor.txt.html();
      previewHtml.value = html;
      drawerVisible.value = true;
    };
    const onDrawerClose = () => {
      drawerVisible.value = false;
    }


    onMounted(() => {
      editor.create();
      handleQuery();

    })
    return {
      docs,
      pagination,
      columns,
      loading,

      level1,

      edit,
      add,

      modalVisible,
      modalLoading,
      // handleModalOk,
      handleSave,
      doc,
      handleDelete,
      treeSelectData,
      handlePreviewContent,
      onDrawerClose,
      drawerVisible,
      previewHtml
    }
  }
});
</script>